Microsoft is keen to get Kinect into PCs, and will be releasing software to add Kinect to Windows next month. It's also expected to offer PC-centric sensor hardware.

Do you really want motion control in a laptop though? We can't see many folk happy to sit waving their arms around, even to make small gestures for manipulating a UI, with a notebook perched precariously on their knees.

And laptop screens - even 17-inchers - are too small for the kind of gaming at a distance that the Xbox incarnation of Kinect makes possible.